Heatless solution dehumidification system
By using a heatless solution dehumidification system, a combination of low-concentration solution tanks, separators, and high-concentration solution tanks is employed to achieve salt solution concentration conversion, solving the problem of high energy consumption during high-temperature salt solution conversion and reducing system energy consumption and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-04-07
AI Technical Summary
Existing salt solution dehumidification systems require the use of heat pumps to complete the high-temperature to low-temperature conversion, resulting in high energy consumption and increased system operating costs.
A heatless solution dehumidification system is adopted, which combines a low-concentration solution tank, a separator, a bypass pipeline and a high-concentration solution tank, and uses a permeable membrane and solenoid valve control to realize the concentration conversion of the salt solution, avoiding the heating and cooling process and reducing energy consumption.
This reduces the energy consumption of the salt solution dehumidification system, decreases operating costs, and improves the system's efficiency and economy.
Smart Images
Figure CN224086404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to dehumidification systems, and more particularly to a heatless solution dehumidification system. Background Technology
[0002] In both production and daily life, the basic requirements for air quality are suitable temperature and humidity. There are various dehumidification methods, mainly including rotary dehumidifiers, heat pumps, and solution dehumidification. Solution dehumidification technology is a method that uses solutions with hygroscopic properties (such as various salt solutions) to absorb moisture from the air, thereby reducing air humidity. This technology utilizes the chemical properties or physical adsorption capacity of solutions; through specific chemical reactions or physical adsorption, it can effectively capture water vapor molecules in the air, thus achieving a dehumidification effect and providing a more comfortable and suitable humidity level for the environment.
[0003] In order for the salt solution to circulate and complete the dehumidification function, the salt solution needs to be converted from high temperature to low temperature and simultaneously from high concentration to low concentration using a heat pump. This process requires significant energy consumption, increasing the overall operating cost of the system. Utility Model Content
[0004] The main purpose of this invention is to provide a heatless solution dehumidification system, which aims to solve the problem that salt solution dehumidification systems require the salt solution to be converted from high temperature to low temperature under the action of a heat pump, resulting in high energy consumption and increased operating costs of the entire system.
[0005] To achieve the above objectives, this utility model provides a heatless solution dehumidification system, comprising:
[0006] Air supply duct;
[0007] A low-concentration solution tank is installed in the air supply duct, and a first concentration meter is installed inside the low-concentration solution tank;
[0008] A low-concentration pipeline leads out of the low-concentration solution tank and is equipped with a low-concentration pump.
[0009] A separator is connected to the output end of the low-concentration pipeline, and the separator has a drain outlet and a liquid outlet.
[0010] A high-concentration solution tank is connected to the drain port and is equipped with a second concentration meter.
[0011] A bypass pipeline is connected between the output end of the low-concentration pipeline and the high-concentration solution tank, and a low-concentration solenoid valve is installed on it.
[0012] A high-concentration pipeline is connected between the high-concentration solution tank and the low-concentration solution tank and is equipped with a high-concentration pump and a high-concentration solenoid valve.
[0013] Furthermore, a permeation membrane is provided in the middle of the separator in the height direction, the drain outlet leads out to the cavity above the permeation membrane, the low concentration pipeline and the drain outlet lead out to the cavity below the permeation membrane and are provided at both ends in the length direction of the separator, wherein multiple vertical plates are provided at intervals in the length direction in the cavity below the permeation membrane, and the multiple vertical plates form a tortuous concentration channel.
[0014] Furthermore, the pumping flow rate of the low-concentration pump is less than that of the high-concentration pump.
[0015] Furthermore, a liquid level sensor is installed inside the low-concentration solution tank and / or the high-concentration solution tank.
[0016] Furthermore, a water storage tank is connected to the free end of the drain outlet.
[0017] Furthermore, the air supply duct is equipped with a perforated filter upstream of the low-concentration solution tank.
[0018] Furthermore, an adsorption-type adsorption tower is installed downstream of the low-concentration solution tank in the air supply duct.
[0019] Furthermore, an air supply fan is installed downstream of the adsorption tower in the air supply duct.
[0020] Furthermore, the high-concentration solenoid valve and the low-concentration solenoid valve are selected from direct-acting, pilot-operated, and step-direct-acting types.
[0021] Furthermore, the high-concentration solution tank also has a drain outlet at the bottom.
[0022] The heatless solution dehumidification system provided by this utility model involves a low-concentration salt solution entering the bottom of a low-concentration solution tank. The concentration of the low-concentration salt solution accumulated at the bottom of the tank is detected by a first concentration meter inside the tank. The low-concentration pipeline extracts the low-concentration salt solution and introduces it into a separator. After the low-concentration salt solution is transformed into a high-concentration salt solution, it is input into a high-concentration solution tank, and the solution concentration is monitored by a second concentration meter. The separator eliminates the need for heating and cooling of the salt solution, reducing energy consumption. Furthermore, a bypass pipeline is connected between the output end of the low-concentration pipeline and the high-concentration solution tank and is equipped with a low-concentration solenoid valve. The specific concentration of the high-concentration salt solution in the high-concentration solution tank can be adjusted by changing the opening degree of the low-concentration solenoid valve. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the heatless solution dehumidification system of the first embodiment of this utility model;
[0024] Figure 2This is a schematic diagram of the separator in the heatless solution dehumidification system of the second embodiment of this utility model;
[0025] Figure 3 This is a schematic diagram of the heatless solution dehumidification system of the third embodiment of this utility model.
[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0028] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.
[0029] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.
[0030] Reference Figures 1 to 3 In one embodiment of this utility model, a heatless solution dehumidification system includes:
[0031] Air supply duct 100;
[0032] A low-concentration solution tank 200 is installed in the air supply duct 100, and a first concentration meter 210 is installed inside the low-concentration solution tank 200.
[0033] A low-concentration pipeline 300 leads out to the low-concentration solution tank 200 and is equipped with a low-concentration pump 310;
[0034] Separator 400 is connected to the output end of the low concentration pipeline 300, and the separator 400 has a drain outlet 410 and a liquid outlet 420.
[0035] A high-concentration solution tank 500 is connected to the drain port 420 and is equipped with a second concentration meter 510 inside.
[0036] A bypass pipeline 600 is connected between the output end of the low concentration pipeline 300 and the high concentration solution tank 500 and is equipped with a low concentration solenoid valve 610.
[0037] A high-concentration pipeline 700 is connected between the high-concentration solution tank 500 and the low-concentration solution tank 200, and is equipped with a high-concentration pump 710 and a high-concentration solenoid valve 720.
[0038] In existing technologies, in order for the salt solution to circulate and complete the dehumidification function, the salt solution needs to be converted from high temperature to low temperature under the action of a heat pump, and at the same time, the high concentration to low concentration is also completed. In this process, the energy consumption is relatively large, which increases the operating cost of the entire system.
[0039] In this invention, the heatless solution dehumidification system includes an air supply duct 100, a low-concentration solution tank 200, a low-concentration pipeline 300, a separator 400, a high-concentration solution tank 500, a bypass pipeline 600, and a high-concentration pipeline 700.
[0040] The air supply duct 100 is an air supply duct that requires dehumidification treatment. There are no restrictions on the material, shape and size of the specific air supply duct 100.
[0041] A low-concentration solution tank 200 is installed in the air supply duct 100. It should be noted that the low-concentration solution tank 200 does not mean it contains only low-concentration salt solution. The low-concentration solution tank 200 contains packing material. High-concentration salt solution is sprayed from the top of the packing material. When the humid air in the air supply duct 100 reaches the packing material, it interacts with the high-concentration salt solution, reducing its humidity. As the air flows out from the bottom of the packing material, the high-concentration salt solution transforms into a low-concentration salt solution, which ultimately enters the bottom of the low-concentration solution tank 200. A first concentration meter 210 is installed inside the low-concentration solution tank 200 to detect the concentration of the low-concentration salt solution accumulated at the bottom of the tank.
[0042] A low-concentration pipeline 300 leads out of the low-concentration solution tank 200 and is equipped with a low-concentration pump 310. The low-concentration pipeline 300 draws out the low-concentration salt solution in preparation for subsequent conversion into a high-concentration salt solution, wherein the low-concentration pump 310 provides the power for suction. The type of low-concentration pump 310 is not limited, but is specifically designed to perform the suction function.
[0043] The separator 400 is conductively connected to the output end of the low-concentration pipeline 300. In the separator 400, the low-concentration salt solution is transformed into a high-concentration salt solution through reverse osmosis or other methods. Thus, the input to the separator 400 is a low-concentration solution, and the output is a high-concentration salt solution and clean water (generally an ultra-low concentration salt solution). The high-concentration salt solution is discharged from the drain port 420, while the clean water is discharged from the drain port 410. The power to increase the concentration in the separator 400 can come from the low-concentration pump 310 or a separate power source. In one specific implementation, a permeation membrane 430 is located in the middle of the separator 400 in the height direction. The drain port 410 leads to the cavity above the permeation membrane 430, while the low-concentration pipeline 300 and the drain port 420 lead to the cavity below the permeation membrane 430 (generally, they should not be placed close together).
[0044] A high-concentration solution tank 500 is connected to the drain port 420 and is equipped with a second concentration meter 510. The high-concentration solution tank 500 receives the high-concentration salt solution discharged from the drain port 420 of the separator 400, and the concentration can be monitored by the second concentration meter 510. Preferably, a one-way balancing valve is provided on the drain port 420 to achieve one-way flow while ensuring the working pressure of the separator 400.
[0045] A bypass pipe 600 is connected between the output end of the low-concentration pipe 300 and the high-concentration solution tank 500, and a low-concentration solenoid valve 610 is installed on it. The bypass pipe 600 carries a low-concentration solution, and the specific concentration of the high-concentration salt solution in the high-concentration solution tank 500 can be adjusted by changing the opening degree of the low-concentration solenoid valve 610.
[0046] A high-concentration pipeline 700 is connected between the high-concentration solution tank 500 and the low-concentration solution tank 200, and is equipped with a high-concentration pump 710 and a high-concentration solenoid valve 720. The high-concentration pump 710 on the high-concentration pipeline 700 pumps the high-concentration salt solution in the high-concentration solution tank 500 to the top of the low-concentration solution tank 200, ultimately achieving spraying.
[0047] Data acquisition from the first concentration meter 210 and the second concentration meter 510 can guide the human control of the low-concentration pump 310 and the high-concentration pump 710, or set up a controller to automate the relevant control.
[0048] In summary, a low-concentration salt solution enters the bottom of a low-concentration solution tank 200, where a first concentration meter 210 detects the concentration of the low-concentration salt solution at the bottom. The low-concentration pipeline 300 extracts the low-concentration salt solution and introduces it into a separator 400. After the low-concentration salt solution is converted into a high-concentration salt solution, it is input into a high-concentration solution tank 500, where the concentration is monitored by a second concentration meter 510. The separator 400 eliminates the need for heating and cooling of the salt solution, reducing energy consumption. Furthermore, a bypass pipeline 600 connects the output end of the low-concentration pipeline 300 to the high-concentration solution tank 500 and is equipped with a low-concentration solenoid valve 610. By adjusting the opening of the low-concentration solenoid valve 610, the specific concentration of the high-concentration salt solution in the high-concentration solution tank 500 can be controlled.
[0049] Reference Figure 2 In one embodiment, a permeation membrane 430 is disposed in the middle of the separator 400 in the height direction, the drain outlet 410 leads out to the cavity above the permeation membrane 430, the low concentration pipeline 300 and the drain outlet 420 lead out to the cavity below the permeation membrane 430 and are disposed at both ends of the separator 400 in the length direction, wherein a plurality of vertical plates 440 are disposed at intervals in the length direction in the cavity below the permeation membrane 430, and the plurality of vertical plates 440 form a tortuous concentration channel.
[0050] In this embodiment, a concentration path is formed by multiple vertical plates 440. A low-concentration pipe 300 and a drain port 420 are respectively introduced to the beginning and end of the concentration path. As the low-concentration salt solution in the low-concentration pipe 300 flows through the concentration path, it gradually interacts with the permeate membrane 430, causing its concentration to continuously increase. This structural design avoids the situation where the low-concentration salt solution flows erratically in the separator 400, preventing efficient concentration.
[0051] In one embodiment, the pumping flow rate of the low-concentration pump 310 is less than the pumping flow rate of the high-concentration pump 710.
[0052] In this embodiment, the pumping flow rate of the low-concentration pump 310 is less than that of the high-concentration pump 710, ensuring that the high-concentration solenoid valve 720 has room for adjustment. For example, when the low-concentration pump 310 starts normally, it draws low-concentration solution from the low-concentration solution tank 200 at a fixed pumping flow rate; the pumping flow rate of the high-concentration pump 710 must be greater to prevent the low-concentration solution in the tank 200 from easily decreasing, and this balance is achieved by adjusting the opening of the high-concentration solenoid valve 720.
[0053] In one embodiment, a liquid level sensor is provided in the low-concentration solution tank 200 and / or the high-concentration solution tank 500.
[0054] In this embodiment, the opening adjustment of the high-concentration solenoid valve 720 is guided by the sensing data from the liquid level sensor. Specifically, the type of liquid level sensor is not limited, as long as it can obtain the liquid level.
[0055] Reference Figure 2 In one embodiment, the free end of the drain outlet 410 is connected to a water storage tank 411.
[0056] In this embodiment, the liquid discharged from the drain outlet 410 is received by the water storage tank 411, and can be processed in the water storage tank 411 to complete the discharge process.
[0057] Reference Figure 3 In one embodiment, the air supply duct 100 is provided with a perforated filter 110 upstream of the low concentration solution tank 200.
[0058] In this embodiment, the incoming air is filtered by filter 110, mainly for filtering solid particulate matter. Specifically, filter 110 can be a polymer type.
[0059] Reference Figure 3 In one embodiment, the air supply duct 100 is provided with an adsorption-type adsorption tower 120 downstream of the low-concentration solution tank 200.
[0060] In this embodiment, the dehumidified airflow is treated by an adsorption tower 120, mainly to adsorb chemical substances.
[0061] Reference Figure 3 In one embodiment, the air supply duct 100 is provided with an air supply fan 130 downstream of the adsorption tower 120.
[0062] In this embodiment, a blower 130 is installed downstream of the adsorption tower 120 to provide a driving negative pressure, thereby forming a stable airflow in the entire air supply duct 100, which is beneficial to the operation of the low-concentration solution tank 200, the filter 110, and the adsorption tower 120. The type of blower 130 is not limited; for example, it can be a conventional impeller or turbine exhaust fan.
[0063] In one embodiment, the high-concentration solenoid valve 720 and the low-concentration solenoid valve 610 are selected from direct-acting, pilot-operated, and step-direct-acting types.
[0064] In this embodiment, since the high-concentration solenoid valve 720 and the low-concentration solenoid valve 610 are the core control structures in this heatless solution dehumidification system, the structural type selection of the high-concentration solenoid valve 720 and the low-concentration solenoid valve 610 is given. The model of the high-concentration solenoid valve 720 and the low-concentration solenoid valve 610 is determined according to the specific application scenario.
[0065] Reference Figure 3 In one embodiment, the high-concentration solution tank 500 also has a drain outlet 520 at its bottom.
[0066] In this embodiment, the drain outlet allows for the treatment of crystals in the high-concentration solution tank 500. The drain outlet 520 is preferably located at the bottom of the side wall of the high-concentration solution tank 500 for ease of operation. A manual or electrically controlled switch can be installed on the drain outlet 520.
[0067] In summary, the heatless solution dehumidification system provided by this utility model allows a low-concentration salt solution to enter the bottom of a low-concentration solution tank 200. A first concentration meter 210 inside the low-concentration solution tank 200 detects the concentration of the low-concentration salt solution stored at the bottom of the tank. A low-concentration pipeline 300 extracts the low-concentration salt solution and introduces it into a separator 400. After the low-concentration salt solution is converted into a high-concentration salt solution, it is input into a high-concentration solution tank 500, and the solution concentration is monitored by a second concentration meter 510. The separator 400 eliminates the need for heating and cooling of the salt solution, reducing energy consumption. Furthermore, a bypass pipeline 600 connects the output end of the low-concentration pipeline 300 to the high-concentration solution tank 500 and is equipped with a low-concentration solenoid valve 610. Adjusting the opening of the low-concentration solenoid valve 610 allows for precise control of the concentration of the high-concentration salt solution in the high-concentration solution tank 500.
[0068] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A heatless solution dehumidification system, characterized in that, include: Air supply duct (100); A low-concentration solution tank (200) is installed in the air supply duct (100), and a first concentration meter (210) is installed inside the low-concentration solution tank (200); A low-concentration pipeline (300) leads out of the low-concentration solution tank (200) and is equipped with a low-concentration pump (310); A separator (400) is connected to the output end of the low concentration pipeline (300), and the separator (400) has a drain outlet (410) and a liquid outlet (420). A high-concentration solution tank (500) is connected to the drain port (420) and is equipped with a second concentration meter (510). A bypass pipeline (600) is connected between the output end of the low concentration pipeline (300) and the high concentration solution tank (500) and is equipped with a low concentration solenoid valve (610). A high-concentration pipeline (700) is connected between the high-concentration solution tank (500) and the low-concentration solution tank (200) and is equipped with a high-concentration pump (710) and a high-concentration solenoid valve (720).
2. The heatless solution dehumidification system according to claim 1, characterized in that, A permeable membrane (430) is provided in the middle of the separator (400) in the height direction. The drain outlet (410) leads out of the cavity above the permeable membrane (430). The low concentration pipeline (300) and the drain outlet (420) lead out of the cavity below the permeable membrane (430) and are provided at both ends of the separator (400) in the length direction. In the cavity below the permeable membrane (430), multiple vertical plates (440) are arranged at intervals in the length direction. The multiple vertical plates (440) form a tortuous concentration channel.
3. The heatless solution dehumidification system according to claim 1, characterized in that, The pumping flow rate of the low-concentration pump (310) is less than that of the high-concentration pump (710).
4. The heatless solution dehumidification system according to claim 1 or 2, characterized in that, A liquid level sensor is installed in the low-concentration solution tank (200) and / or the high-concentration solution tank (500).
5. The heatless solution dehumidification system according to claim 1 or 2, characterized in that, The free end of the drain outlet (410) is connected to a water storage tank (411).
6. The heatless solution dehumidification system according to claim 1 or 2, characterized in that, The air supply duct (100) is provided with a perforated filter (110) upstream of the low concentration solution tank (200).
7. The heatless solution dehumidification system according to claim 6, characterized in that, The air supply duct (100) is provided with an adsorption type adsorption tower (120) downstream of the low concentration solution tank (200).
8. The heatless solution dehumidification system according to claim 7, characterized in that, The air supply duct (100) is provided with an air supply fan (130) downstream of the adsorption tower (120).
9. The heatless solution dehumidification system according to claim 1 or 2, characterized in that, The high-concentration solenoid valve (720) and the low-concentration solenoid valve (610) are selected from direct-acting, pilot-operated, and step-direct-acting types.
10. The heatless solution dehumidification system according to claim 1 or 2, characterized in that, The high-concentration solution tank (500) also has a drain outlet (520) at the bottom.